Qingjun Sun, a 56-year-old acupuncturist, was fatally shot outside his home in East Oakland on the evening of December 11, 2012, about 8:40 p.m. The shooting occurred in the 800 block of Hawkins Drive, in a relatively new housing development called Arcadia Park near the Oakland Coliseum. Authorities believe Sun had just arrived home from work when he was attacked outside the residence he shared with his wife.

Neighbors described Sun and his wife as friendly, often seen walking their mastiff, Tiger. Sun was known in the community for his acupuncture practice, and some residents said he had a grown son who did not live with them. Police had not identified a motive and no arrests had been announced; investigators were offering up to a $10,000 reward for information and encouraging tip submissions, including anonymous texts.

Sun’s death was recorded as Oakland’s 121st homicide of the year. Does anyone in the Arcadia Park or Hawkins Drive area remember anything about that December evening or Sun’s routines that might help the investigation?